Earthquake with magnitude of ML 2.3 on date 06-04-2009 and time 23:10:26 (Italy) in region 6 km W L'Aquila (AQ)

A magnitude ML 2.3 earthquake occured in region: 6 km W L'Aquila (AQ), on

  • 06-04-2009 21:10:26 (UTC)
  • 06-04-2009 23:10:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3790, 13.3330 at 11 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
L'Aquila AQ 6 69753 69753
Scoppito AQ 6 3727 73480
Pizzoli AQ 7 4326 77806
Barete AQ 9 737 78543
Lucoli AQ 10 1011 79554
Tornimparte AQ 10 3187 82741
Cagnano Amiterno AQ 13 1369 84110
Ocre AQ 16 1167 85277
Fossa AQ 16 721 85998
Capitignano AQ 16 665 86663
Montereale AQ 18 2581 89244
Poggio Picenze AQ 18 1136 90380
Sant'Eusanio Forconese AQ 19 394 90774

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km W of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
60 Km E of Terni (111501 inhabitants)
64 Km NE of Tivoli (56533 inhabitants)
65 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
82 Km SE of Foligno (57155 inhabitants)
88 Km NE of Roma (2864731 inhabitants)
90 Km NE of Velletri (53303 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.3 2009-04-06
21:10:26
42.379 13.333 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 763089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-06 21:10:26 ± 0.13
Latitude 42.3790 ± 0.0072
Longitude 13.3330 ± 0.0122
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 763089

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1087
Semi-minor axis of confidence ellipse (meter) 655
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 112
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 8
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 763089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:25:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIDA.HHN. 2009-04-06T21:12:57.79 10.0 undecidable manual Pg 0 0 0
IV.RNI2.HHE. 2009-04-06T21:12:56.86 10.0 undecidable manual Pg 0 0 0
IV.SDI.SHZ. 2009-04-06T21:12:49.75 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHE. 2009-04-06T21:12:44.75 10.0 undecidable manual Pg 211 55.7997 -0.123 46
.VVLD.HHE. 2009-04-06T21:11:05.81 10.0 undecidable manual Sg 0 0 0
.VVLD.HHE. 2009-04-06T21:10:57.92 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-06T21:10:39.47 0.3 undecidable manual Sg 172 40.0266 -0.417 66
IV.TERO.HHE. 2009-04-06T21:10:38.00 0.3 undecidable manual Sg 39 34.9428 -0.54 64
.CERT.---. 2009-04-06T21:10:36.62 0.6 undecidable manual Pg 211 55.7997 -0.123 46
.FAGN.---. 2009-04-06T21:10:36.10 0.6 undecidable manual Sg 121 24.0537 0.463 45
.FIAM.HHE. 2009-04-06T21:10:34.63 0.3 undecidable manual Sg 235 21.5673 -0.34 69
IV.PTQR.SHZ. 2009-04-06T21:10:34.92 0.6 undecidable manual Pg 172 40.0266 0.614 41
IV.VCEL.EHZ. 2009-04-06T21:10:34.94 0.3 undecidable manual Pg 87 41.625 0.382 66
.CAMP.---. 2009-04-06T21:10:34.09 0.3 undecidable manual Sg 20 18.4704 -0.013 75
IV.TERO.HHE. 2009-04-06T21:10:33.29 0.1 undecidable manual Pg 39 34.9428 -0.242 92
.CAMP.---. 2009-04-06T21:10:31.36 0.1 undecidable manual Pg 20 18.4704 0.388 92
.FIAM.HHE. 2009-04-06T21:10:31.78 0.1 undecidable manual Pg 235 21.5673 0.31 93
.FAGN.---. 2009-04-06T21:10:31.99 0.3 undecidable manual Pg 121 24.0537 0.137 72
.AQU.HHZ. 2009-04-06T21:10:30.59 0.1 undecidable manual Sg 116 6.2937 -0.42 93
.AQU.HHZ. 2009-04-06T21:10:29.28 0.1 undecidable manual Pg 116 6.2937 0.096 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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